baber/WOPTO huggingface dataset:
Patent GB-1239113-A (GB)
IPC: H04L25/49
Filed: 1969-11-25
Abstract: 1,239,113. Encoder; A/D conversion. INTERNATIONAL BUSINESS MACHINES CORP. 25 Nov., 1969 [18 Dec., 1968], No. 57495/69. Headings G4A, G4C and G4H. A system for converting a selected number into a d - k limited binary code, i.e. a code wherein adjacent "1's" are separated by a maximum of k and a minimum of d "O's", comprises a threshold comparator in each order of the code which compares the current value of a number A which has an initial value An which is related to the value of the selected number to determine whether the current value of A is or is not less than a value corresponding to the associated order of the code and a device which, if the current value is not less than the value of that order, generates a "1" in that order and reduces the value of A by an amount sufficient to ensure that the minimum spacing between "1's" is maintained to produce a new value of A which is applied to the comparator of the next lower stage and, if the current value is less than the value of that order, generates a "0" in that order and passes the value of A to the next lower comparator unchanged. The threshold with which the current value of A is compared in each order is chosen so that the maximum spacing between "1's" is not exceeded. A multiplier triggered by the generation of a "1" in a given order is used to generate a value which is subtracted from A in an adder to produce the new current value of A. In the example (Fig. 3) of a code with d= 1 and k= 3, 22 is subtracted from A if a "1" is generated in the 8th order to ensure that a "1" is not generated in the 7th order. The general formulµ for the threshold and the quantity generated by the multiplier are shown in Fig. 1A, where n represents the number of binary digits being used in the coded sequence. The values of A lie between minimum and maximum values determined by the d, k constraints and the number of digits used. This range may be laterally shifted to allow numbers outside the range to be processed by including an adder 11 at the input to the system and a fixed quantity is added to the input number B to bring it within the allowable range. Depending on whether direct translation or reverse type coding is to be used A is given by:- A = B + Min. value of A or A = Max. value of A - B, respectively. The generation of a "1" in any order of the coded sequence implies that the next d digits are "0's" and the threshold comparison in the next d stages may be omitted. A number not within the allowable range may be coded by resolving it into a number of allowable components and cascading the resultant sequences. Buffering digits calculated using a look-ahead facility may be included to comply with the d, k constraints. A d - k codes sequence is decoded by multiplying the binary digit in each order by the appropriate weighting factor (threshold), adding the products to form the sum An, and recovering the original input number B. The system may be used in conjunction with, e.g., a magnetic store to achieve maximum compaction of data without intersymbol interference.
Patent GB-1264785-A (GB)
IPC: G01N30/86
Filed: 1968-02-22
Abstract: 1,264,785. Selective signalling. BRITISH PETROLEUM CO. Ltd. 24 Feb., 1969 [22 Feb., 1968], No. 8772/68. Heading G4H. In a print-out control arrangement for a gas chromatograph waveform analyser of the type in which a running total of the area under the waveform is maintained in a counter after voltage-to-frequency conversion of the instantaneous amplitude of the waveform, a plurality of timing devices, or delays, are provided each adapted to produce an output pulse a preset period after receiving a set pulse, which timers are used sequentially in conjunction with peak and valley detectors to initiate print-out of the contents of the counter at specific points of the waveform, the pattern of operations being: (i) detection of the first peak following the timer output pulse, for example that from the first timer T1, Fig. 5, causes print-out and the setting of the next timer T2; (ii) detection of the first valley after a timer is set causes print-out, and (iii) stages (i) and (ii) having occurred, both the peak and the valley detectors are ineffective until after the next timer output pulse. In this way small peaks lying within a period during which a timer is operating, for example as shown in Fig. 5, do not initiate print-out. Outline block drawings of the embodiments are described. One (Fig. 2, not shown) uses a synchronous motor driving a notched disc as the timers, the notches being spaced in accordance with the successive time periods T1, T2..., and the other (Fig. 4, not shown) uses a plurality of electronic counters.
Patent GB-1290425-A (GB)
IPC: A61G15/02
Filed: 1970-09-26
Abstract: 1290425 Dental chairs SURGICAL MECHANICAL RESEARCH Inc 26 Sept 1970 45968/70 Heading A4J In a medical chair which has two power units 29, 39 for raising and lowering the chair and for altering the inclination of the seat member 22 and backrest 25 respectively, a footrest 46 is drawn under the seat member 22 when the seat is lowered and in the horizontal position, the footrest being connected to the forward end of a pair of seat supports 20 by a pair of leg rest supports 45. The base 2 of the chair is rotatable about a vertical axis a friction member 62 which engages a fixed base 1 holding the chair against rotation. Pressure on foot pads 61 causes the member 62 to disengage the fixed base so that the chair may be rotated.
Patent GB-1295027-A (GB)
IPC: G03G15/10
Filed: 1971-04-19
Abstract: 1295027 Electro-photographic developing apparatus R C A CORPORATION 19 April 1971 [26 March 1970] 25374/71 Headings G2H G2A [Also in Division D1] Developing liquid 16 is pumped through a slit 58 to contact and image bearing web 24, and excess liquid is guided away from slit 58 in a lateral direction by channels 78 which are defined for example, by ridges 76. Liquid is also pumped through a stand-pipe 42 to provide a constant pressure to the liquid emerging from slit 58. Development takes place under a field provided by a voltage source 48, Figs.3,4, 5 (not shown) depict alternative forms of channel.
Patent GB-1297278-A (GB)
IPC: F02C9/32
Filed: 1970-06-17
Abstract: 1297278 Gas turbine engine fuel systems MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 17 June 1970 [19 June 1969] 29491/70 Heading F1G [Also in Division G3] A gas turbine engine comprises a pressure signal control device 7a, Figs.5 and 6, receiving a first pressure p 2  representative of the outlet pressure of the compressor 1 and a second pressure p 1  representative of the compressor inlet pressure or of the ambient pressure, the device 7a having an outlet port 18 which is connected by a line 16 to a fuel control device 5 (which may be as described in Specification 1187634 with a further control in accordance with engine speed) to provide a pressure signal p z  for controlling the device and thereby determining the rate of fuel supply, the pressure signal having a value which will vary according to a function of the ratio of p 2  to p 1 . The device 7a comprises a spindle 8 carrying rings having a small clearance in a bore of the device to form a plurality of flow restrictors connected in series between the pressures p 2  and p 1 , thereby providing an air potentiometer having a tapping 18 from which a pressure p z  intermediate the pressures p 2  and p 1  is obtained. The spindle 8 is displaceable along the bore so as to vary the number of restrictors lying between the tapping 18 and the adjacent end of the bore and thereby vary the pressure p 2 . The adjustment may be a pre-set one effected by an adjusting screw. Alternatively or in addition, the adjustment may be effected in accordance with the temperature upstream of the combustion chamber 3 (or the air inlet temperature T 1 ) by means of bi-metallic discs 11.
Patent GB-1301292-A (GB)
IPC: G06F17/40
Filed: 1969-09-05
Abstract: 1301292 Recording measured data INSTEM Ltd 25 Sept 1970 [5 Sept 1969] 44038/69 Heading G4H A system for digitally recording the values of at least two variables such as load and extension in a tensile testing machine or thermal conductivity and time in a gas chromatograph comprises a recording mechanism for providing a digital record of the values of the variables measured at discrete intervals and a circuit for inhibiting the output of data to the recording mechanism except when the measured values of two of the variables differ by a predetermined increment from their previously measured values or, when one of two measured variables is represented by regularly occurring pulses such as time pulses, the measured value of the other variable differs from its previously measured value by a predetermined increment. Analogue signals representing the variables are sampled at discrete intervals by switches 12, 13 and the digital values of the variables are fed to counters 15, 16. As each variable is sampled the previous digital value of each variable is applied via a gate 17 or 18 and a digital-to-analogue converter 19 to respective comparators 20 which also receive the present measured values of the variables. Each comparator has high and low outputs depending on whether the present value is above or below the previous value of the variable and feeds addition or subtraction pulses both to the counters 15, 16 and flp-flops 27, 28. When both flip-flops have been set, gates 32, 33 are opened to permit data in stores 25, 26 to be transferred to the recording mechanism.
Patent GB-1301358-A (GB)
IPC: G03C1/34
Filed: 1970-07-28
Abstract: 1301358 Photographic silver halide materials KONISHIROKU PHOTO INDUSTRY CO Ltd 28 July 1970 [2 Aug 1969] 36592/70 Heading G2C Light-sensitive photographic silver halide materials having a polyester support contain as an anti-foggant in the emulsion or in another layer a compound of the formula: - where each of R 1 , R 2 , R 3  and R 4  are aryl or aralkyl, e.g. phenyl, naphthyl, tolyl, butylphenyl, octylphenyl, dodecylphenyl, benzyl; Z is N, P, As or Sb; and X is an anion. Salts, oxides or hydroxides of Al, Ga, In or Tl may be present.
Patent GB-1310119-A (GB)
Title: Plant culture
IPC: C12N5/14
Filed: 1970-02-13
Abstract: 1310119 Fusion of plant cells NATIONAL RESEARCH DEVELOPMENT CORP. 19 April 1971 [13 Feb 1970] 6999/70 Heading C6F Fusion of isolated protoplasts derived from plants of the class Angiospermae is effected by treating the isolated protoplasts with an aqueous solution containing sodium ions in the absence of magnesium and calcium or other cations or anions which are physiologically unacceptable to the protoplasts or inhibitory to their fusion, and allowing or constraining protoplasts to move towards each other and to fuse together. Fusion between somatic protoplasts and of somatic protoplasts with gametic plant protoplasts may be accomplished. The protoplasts may be isolated enzymatically with cellulase and pectinase. There after the isolated protoplasts are plasmolysed with a 0.56 M solution of sucrose (glucose, mannitol or sorbital could be used) and the plasmolysed protoplasts are treated with sodium nitrate solution of 0. 25M (of slightly lower osmotic pressure than the solution used for the plasmolysis) to effect fusion. Multi-nucleate plant cells are produced by culturing the resulting fused multi-nucleate protoplasts in an inorganic salt medium containing 20 to 25% (w/v) of sucrose. Mono-nucleate plant cells are produced by effecting cell wall regeneration of the fused multi-nucleate protoplasts with concomitant or subsequent cell division accompanied by nuclear fusion. Plant hybrids exhibiting nuclear and/or cytoplasmic hybridisation and plant seeds may be obtained. The Examples are directed to the fusion of protoplasts from the following: (1) oat-oat, maize-maize, wheat-wheat, barley-barley and rice-rice (2) tobacco-tobacco (3) oat-maize (4) oat-barley (5) maize-barley. The method may also be applied to the fusion of protoplasts derived from rye, soya bean, carrot and rose.
Patent GB-1315262-A (GB)
Title: Manufacturing a gussetted web for use in manufacturing plastics bags
IPC: B31B19/36
Filed: 1971-05-19
Abstract: 1315262 Carrier bags VENUS PACKAGING Ltd 21 March 1972 [19 May 1971] 15715/71 Heading A4G [Also in Divisions B5 and D1] The rear wall 11 of a plastics carrier bag is taller than the front wall 10 and handle apertures or slits 12 are punched in the space between the top edges 8 and 9 in the wall 11 and between the edges 8 and 7 in both walls 10 and 11, the handle holes aligning when the taller side is folded over as a closure flap. The bag is made from an extended tubular web having a gusset (4) formed at each side, each gusset having a fold line 7 between the front and rear folded edges 8, 9, and the edges 8, 9 on the side of the web which forms the top of the bag being laterally displaced from each other. The fold line 7 at the top of the bag is slit to provide access to the bag, the handle apertures 12 are punched, the web is cut into lengths equal to the bag width and the cut edges 13 are welded. The bag may be of polyethylene or polypropylene and may have a pattern printed thereon.
Patent GB-1317889-A (GB)
Title: Vehicle door structures
IPC: B60J5/04
Filed: 1969-08-09
Abstract: 1317889 Vehicle doors WILMOT-BREEDEN Ltd 24 July 1970 [9 Aug 1969] 39948/69 Headings B7B and B7J A vehicle door structure comprises an outer panel mounted on a structural member 1 which has hinge attachment means and latch attachment means at opposite ends thereof so that the weight of the door is at all times wholly supported by the structural member 1. The member 1 has a channel cross-section with two outwardly turned flanges 3. At the hinge side 5a of the door a strengthening bracket 13 is attached to both flanges 3 by bolts 12 with hinges 10 being interposed between the bracket and flanges. A latch supporting bracket 15 is located at the other end 5b and is similarly attached to flanges 3 and has holes for latch screws for a door latch.
Patent GB-1325261-A (GB)
Title: Moulds
IPC: B28B7/00
Filed: 1971-02-25
Abstract: 1325261 Moulds DOW-MAC CONCRETE Ltd 17 Jan 1972 [25 Feb 1971] 5391/71 Heading B5A A mould, e.g. for concrete casting, has a base 1 and pivoted side walls 3, 4, the latter including a number of spaced apart vertical struts 5 or 6 along their lengths each having at their tops inwardly extending straps 7 or 8 pivoted together at 9. Some of the struts on both walls have anti-friction members, such as rollers 13, at their bottom ends which engage guide surfaces 14 whereby the walls are urged towards each other under their own weight. The bottom ends of the remaining struts are engaged by pivoted clamps 11, 12 to secure the walls during casting. The mould is opened by lifting the walls by slings 15 connected to a bar 16 attached to lifting mechanism.
Patent GB-1330609-A (GB)
Title: 4-n-lower alkanoyl hydroxylamino 4- aminodiphenylsulphone  compounds
IPC: C07C205/12
Filed: 1972-05-09
Abstract: 1330609 4 - (Alkanoyl) - hydroxylamino - 4<SP>1</SP>- amino-diphenylsulphones SMITH KLINE & FRENCH LABORATORIES 9 May 1972 21603/72 Heading C2C [Also in Division A5] Novel, therapeutic compounds (I) where R 1  is NH 2 , NHCOR 4  or N(.OR 3 )(.COR 4 ), R 2  is H or alkyl, R 3  is H or COR 5  and R 4  and R 5  are alkyl or dialkylaminoalkylene, are made by acylating corresponding -NHOH compounds and if desired hydrolysing the products obtained. The following compounds are also prepared: 4 - amino - 4<SP>1</SP> - nitrodiphenylsulphide, 4 - acetamido - 4<SP>1</SP> - nitrodiphenyl - sulphide and -sulphone, 4 - acetamido - 4<SP>1</SP> - hydraxylaminodiphenylsulphane, 4 - nitro - 4<SP>1</SP> - trifluoroacetamidodiphenyl-sulphide and -sulphone, 4-hydroxylamino - 4<SP>1</SP> - trifluoroacetamidodiphenylsulphone, 4 - (N,O - diacetylhydroxylamino)- 4<SP>1</SP>- trifluoroacetamidodiphenylsulphone, 3-methyl- 4,4<SP>1</SP> - dinitro - diphenyl - sulphide and -sulphone, 4,4<SP>1</SP> - dihydroxylamino - 3 - methyldiphenylsulphone and 3 - ethyl - 4,4<SP>1</SP> - dinitrodiphenylsulphide.
Patent GB-1339328-A (GB)
Title: Method and apparatus for evaporation
IPC: C02F1/06
Filed: 1971-04-01
Abstract: 1339328 Multi-stage evaporators ALUMINUM CO OF AMERICA 1 April 1971 8397/71 Heading B1B A liquid, e.g. saline water, is purified by distillation or a solution is concentrated by evaporation of solvent in an evaporator wherein the liquid (or solution) flows down through a plurality of superposed evaporative zones, which may be separated by trays 16 (Fig. 1) or may be sections of a packed shell 71 (Fig. 3), maintained at successively reduced pressure such that flash vaporization of some of the liquid and cooling of the remainder takes place in each zone, the vapour evolved in each zone flowing down through a heat conductive conduit 18 (Fig. 1) or 80 (Fig. 3) which extends through all the succeeding zones, whereby heat passes through the wall of the conduit from the vapour within the conduit to the liquid flowing down the outside surface so that the vapour is at least partially condensed and the liquid is heated but not so as to offset the downwardly decreasing temperaturegradient. In the evaporator shown in Fig. 1, the liquid flows from one chamber to the next through a gap 19 around the conduit 18. All the conduits discharge into a chamber 30; and the pressure in the individual chambers 18a, 18b, .. is controlled by throttle valves 32. Condensate flows out of chamber 30 through outlet 36; and uncondensed vapour and non-condensable gases leave through outlet 34, which leads to condenser 38. Residual liquid is discharged from chamber 18d through outlet 24. In order to keep all the trays 16 flooded, it may be necessary to provide larger gaps around conduit 18a than around conduit 18b. The liquid should form a seal between adjacent chambers 12. The shell 71 of the evaporator shown Fig. 3 may be filled with Raschig rings or Berly saddles. When this apparatus is in operation, an inclined "liquid" phase 84 comprising frothing liquid with vapour bubbles forming well below interface 78. Figs. 4 and 5 (not shown) relate to an evaporator with thirteen evaporative zones each comprising a bank of vertical tubes which are in contact with horizontallycorrugated metal sheets. The liquid flows down the sheets; and the vapour flows down the tubes. Fig. 10 shows three stages a, b, c of an evaporator wherein the liquid flows down sheets 134 and through notches 152; while the vapour passes through holes 154 and flows down conduits 139.
Patent GB-1350387-A (GB)
Title: Atomisers
IPC: F23D11/34
Filed: 1970-08-22
Abstract: 1350387 Liquid atomisers SIMMS GROUP RESEARCH & DEVELOPMENT Ltd 20 July 1971 [22 Aug 1970] 40542/70 Heading B2F An atomiser has a body portion 1 adapted for connection to an ultrasonic vibrator, a passage 4 terminating in orifices 2, means, 3, for feeding air under pressure to the passage 4 and means 5, (6) to supply liquid to be sprayed to the passage (Fig. 2, not shown) or over the body portion at the orifice. The combined effect of the vibration and the stream of air is to atomise the liquid. The apparatus is particularly useful for viscous liquids.
Patent GB-1350761-A (GB)
Title: Gloves
IPC: A63B71/14
Filed: 1970-01-27
Abstract: 1350761 Gloves G J SOLOMON 27 April 1971 [27 Jan 1970] 3768/70 Heading A3V In a glove at least the front parts of the fingers and thumb (i.e. those parts intended to lie on the palm side of a wearer's hand in use) and the palm are made of a flexible stretch towelling material. The back of the glove may also be made of this material, but may alternatively be made of a plastics material, e.g. polyvinylchloride, and holes for ventilation may be provided in the plastics material and in any other part of the glove. In order that any slack appearing in the palm of the glove in use can be taken up, the back of the glove may be provided with one or more strips of elastic material associated with one or more press studs. An extra thickness of material in the form of a pad or pads of felt-like absorbent material may be provided on the front parts of the fingers and thumb and diagonally across the palm of the glove.
Patent GB-1351041-A (GB)
Title: Suspended ceiling framework
IPC: E04B9/00
Filed: 1971-06-07
Abstract: 1351041 Suspended ceilings NOREMA AS 7 June 1971 19282/71 Heading E1W A suspended ceiling framework comprises undercut U-section girders 31 with outwardly directed flanges extending from the mouth to support ceiling panels 25. The girders 31 are joined to perpendicular wall mounted elements 31' or to similar girders by means of a spring metal clip 14 which engages the undercut portion at the end of a girder 31 and provides an upwardly extending hook 16 which engages under a lip 21 on the lateral outwardly directed side of a further girder 31 or element 31'. The downwardly directed channel of each framework element may include a screw bolt with a shaped plate engaging the undercut portion when rotated through 90‹. This screw bolt thus clamped in position may be the means whereby a partition wall is secured at its top edge, see Fig. 8 (not shown).
Patent ID-28089-A (ID)
Inventor: BASTABLE BRIAN JOHN
IPC: B65D25/14
Filed: 1999-03-02
Abstract: A process for producing laminated metal strip which comprises the steps of chemically treating the strip to form on at least one of its surfaces a non-metallic coating, and applying to that coated surface a coating of a thermoplastic resin to form a layer thereon. The first coating is preferably corrosion resistant and promotes adhesion with the thermoplastic resin. Preferably the non-metallic coating layer is a phosphate, chromate, oxalate, arsenate, a 2 component polymer, a combination of chromium, silicon and an organic active species, or silanes or azoles. Preferably the thermoplastic resin is polypropylene, polyethyleneterephthalate or a mixture thereof.
Patent ID-27038-A (ID)
Inventor: LAW STEPHEN JOHN
IPC: D04H1/425
Filed: 1999-06-04
Abstract: A nonwoven cellulose fabric is manufactured by extruding a solution of cellulose through at least one spinning jet to form fibres, subjecting the fibres to a high velocity gas flow, and passing the fibres through a vapour mist which at least partially coagulates the fibres prior to collection as a fabric web. The vapour mist may be a low alkyl alcohol or water, and is preferably formed by an atomiser nozzle located below the spinning jet(s). The gas flow is preferably compressed air which is directed onto the fibres at an angle of 30 to the axis of the extrudate fibres. The cellulose solution preferably contains 4-22%, and most preferably 10-15%, by weight cellulose, using an amine oxide as solvent. The fibre web may be collected on a dry surface with the subsequent treatment of the web with a coagulant, or it may alternatively be collected onto a surface wetted with coagulant. The fibre web is preferably collected on a compliant surface, which may be provided by a 2mm thick foam layer.